PCA9508DP - Brand New NXP Semiconductors Signal Buffers, Repeaters, Splitters
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Description
The PCA9508DP is a CMOS integrated circuit that supports hot-swap with zero offset and provides level shifting between low voltage (down to 0.9 V) and higher voltage (2.7 V to 5.5 V) for I2C-bus or SMBus applications. It allows extension of the I2C-bus with bidirectional buffering for both the data (SDA) and the clock (SCL) lines, enabling two buses of 400 pF. The PCA9508DP is a footprint and functional replacement for PCA9515, PCA9515A, PCA9517, and PCA9517A. It is compatible with the I2C-bus and SMBus, and supports offset-free hot-swap with IDLE/STOP detect circuitry. It also has a wide operating supply voltage range and provides ESD protection.
Specifications and features
- 2 channel, bidirectional buffer isolates capacitance and allows 400 pF on either side of the device - Supports offset-free hot-swap with IDLE/STOP detect circuitry - Voltage level translation from 0.9 V to 5.5 V and from 2.7 V to 5.5 V - Footprint and functional replacement for PCA9515, PCA9515A, PCA9517, and PCA9517A - I2C-bus and SMBus compatible - Active HIGH repeater enable input - Static level offset on B side - Open-drain input/outputs - Lock-up free operation - Supports arbitration and clock stretching across the repeater - Accommodates Standard-mode and Fast-mode I2C-bus devices and multiple masters - Powered-off high-impedance I2C-bus pins - A side operating supply voltage range of 0.9 V to 5.5 V - B side operating supply voltage range of 2.7 V to 5.5 V - 5 V tolerant I2C-bus and enable pins - 0 Hz to 400 kHz clock frequency (the maximum system operating frequency may be less than 400 kHz because of the delays added by the repeater) - ESD protection exceeds 6000 V HBM per JESD22-A114, 450 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101 - Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA - Packages offered: SO8 and TSSOP8
Application Scenarios
The PCA9508DP is ideal for I2C-bus or SMBus applications that require level shifting and hot-swap capabilities. It can be used in various electronic devices and systems that use I2C-bus communication, such as industrial control systems, automotive electronics, consumer electronics, and more. The bidirectional buffering and voltage level translation provided by the PCA9508DP make it suitable for isolating two halves of a bus for both voltage and capacitance, enabling reliable and efficient data transmission.
Comparison
Advantages- Supports hot-swap with zero offset - Enables level shifting between low voltage and higher voltage - Provides bidirectional buffering for I2C-bus and SMBus - Wide operating supply voltage range - Compatible with various I2C-bus devices and multiple masters - ESD protection exceeds industry standards - Offers footprint and functional replacement for other models - Supports arbitration and clock stretching across the repeater
Disadvantages- Maximum system operating frequency may be less than 400 kHz due to delays added by the repeater - Requires power sequencing for the dual supply pins
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Datasheet
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- Datasheet: Download PCA9508DP
- Chipdatas Part: CD90-PCA9508DP
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- Last Updated: 2024/06/12 19:33 +0800
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